Answer:
B. Because atoms want 8 valence electrons
Step-by-step explanation:
Ions are formed because atoms want 8 valence electrons. Most atoms attain stability when they 8 electrons in their outermost shell.
This is the reason why they form ions.
- To form ions, atoms will gain or lose electrons or share them.
- This loss, gain, or sharing of electrons often lead to an atom become stable.
- One group of atoms, the noble gases, do not form ions readily
- They have complete numbers of electrons in their valence shells.
- So they do not gain, lose or share their electrons to form ions unlike the others.